If you use GNU Archimedes as a benchmark for your codes, or if you put some of the results obtained by it in your papers, it would be very nice if you write in your papers some aknowledgments or references to it.
For example, you can write a sentence like the followings
"The author wants to thank the author of GNU Archimedes, Jean Michel Sellier, for giving it under GPL license..."
or in your figure captions
"This results have been obtained by GNU Archimedes..."
or a reference to the web site of GNU Archimedes"You can download GNU Archimedes under GPL license at the following web site www.gnu.org/software/archimedes"
This will be very encouraging for me in developping new and more powerfull versions of GNU Archimedes. So, many thanks, for everybody will reference to me, or to GNU Archimedes, in his/her papers!
It will, also, be very nice if you send me a copy of your paper, in order to understand exactly in what contexts this code is being used. This will help me to understand in what direction I can go in the next versions. You can send any copy of your papers which use GNU Archimedes results at

sellier@dmi.unict.it

Every eventual comment, suggestion and advice on this code will be welcome.